Deadly Chemistry

The Crime Scene Miss Redbird found dead on the floor of the ballroom The murder weapon: 8.4 L of a clear liquid found next to her dead body Possible Chemicals Zinc Nitrate (Miss Redbird was highly allergic) Silver Nitrate (used by several members of the household)

The Suspects Professor Wolf Chemistry teacher Working in the study with Silver Nitrate solutions with concentrations between 0.17 to 0.23 M Miss Redbird was his worst student Always late to class Broke lots of glassware Never cleaned up

The Suspects Mrs. Peacock Asthmatic with a prescription for Zinc Nitrate in the bathroom Molarity between 0.07 and 0.13 M Mrs. Peacok was currently rooming with Miss Redbird’s ex-boyfriend They could not be found in the lounge for comment

The Suspects Mr. Rabbit Photographer with solutions of Silver Nitrate in the darkroom Between 0.07 and 0.13 M Had been caught “redbird-handed” at his own blackmail game Pictures of him and Miss Redbird were found hidden in Redbird’s bedroom Mrs. Rabbit has not seen the pictures

The Suspects Mrs. Foghorn Wearing the same dress as Miss Redbird Found in the stable giving Zinc Nitrate to her horse because of bronchitis The strength was within the range of 0.17 – 0.23 M She knew Miss Redbird was allergic because they were lab partners in Professor Wolf’s class Would get angry when Miss Redbird didn’t help with the labs

The Suspects Colonel Mustache Had Silver Nitrate solutions of 0.27-0.30 M in the conservatory Despised the left-wing politics of Miss Redbird Enjoyed making explosives Was the interim assistant principal at the high school Closed the campus when Miss Redbird (student council president) overthrew the administration and took control of the school

Your Task Obtain a sample of the murder solution by asking your teacher for it in the classroom You will also be given 0.10 M NaCl, 0.10 M Na2CO3, 0.10M AgNO3, and 0.10M Zn(NO3)2 Use any materials in your drawer or request additional materials that you may need Determine the identity and molarity of the murder weapon Solve the case: Who Killed Miss Redbird?